package com.antoni.dao;

/**
 * @Author Zhang Chao
 * @Date 2021/5/14 15:41
 * @Version 1.0
 */

import com.antoni.pojo.Department;
import org.springframework.stereotype.Repository;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

/**
 * 【部门dao】
 * @author hp
 */
@Repository
public class DepartmentDao {

    //模拟数据库中的数据
    private static Map<Integer, Department> departments = null;

    static{
        //创建一个部门表
        departments = new HashMap<Integer,Department>();
        departments.put(101,new Department(101,"教学部"));
        departments.put(102,new Department(102,"市场部"));
        departments.put(103,new Department(103,"教研部"));
        departments.put(104,new Department(104,"运营部"));
        departments.put(105,new Department(105,"后勤部"));
    }

    /**
     * 获取所有部门信息
     * @return 全部部门信息
     */
    public Collection<Department> getDepartments(){
        return departments.values();
    }

    /**
     * 通过id得到部门信息
     * @param id 部门号
     * @return 部门信息
     */
    public Department getDepartmentById(Integer id){
        return departments.get(id);
    }

}
